Sports medicine international open最新文献_第6页

Cycling Performance in Short-term Efforts: Laboratory and Field-Based Data in XCO Athletes. 短期努力中的自行车运动表现：XCO 运动员的实验室和现场数据。

Sports medicine international open Pub Date : 2020-03-27 eCollection Date: 2020-01-01 DOI: 10.1055/a-1101-5750

Patrick Schneeweiss, Philipp Schellhorn, Daniel Haigis, Andreas Niess, Peter Martus, Inga Krauss

{"title":"Cycling Performance in Short-term Efforts: Laboratory and Field-Based Data in XCO Athletes.","authors":"Patrick Schneeweiss, Philipp Schellhorn, Daniel Haigis, Andreas Niess, Peter Martus, Inga Krauss","doi":"10.1055/a-1101-5750","DOIUrl":"10.1055/a-1101-5750","url":null,"abstract":"Mountain bike cross-country Olympic has an intermittent performance profile, underlining the importance of short-term but high cycling power output. Previous findings indicate that power output during sprint tests differs between laboratory and field-based conditions and that cycling cadence rises with increasing workload. The aim was therefore to examine power output and cadence in short-term efforts under laboratory and field conditions. Twenty-three competitive athletes (17.9±3.7 years) performed a laboratory power profile test and a simulated race within one week. Power output and cadence during the power profile test were compared to corresponding short-term efforts during the race over durations of 10-300s (TT 10-300 ). Differences were TT 10 +8%, TT 30 +7%, TT 60 -15% and TT 300 -12% for power output and+10%,+8%,+19%,+21% for cadence respectively. Compared to the race, we found higher power output during the power profile test for the shorter efforts but lower for TT 60 and TT 300 . Confirming previous results, cadence was higher during the power profile test compared to the respective intervals of the race and increased with increasing workload or shorter time trial duration. Future research should take into account that compared to the field, a higher cadence is used in laboratory settings to produce similar power output.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"4 1","pages":"E19-E26"},"PeriodicalIF":0.0,"publicationDate":"2020-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a8/8b/10-1055-a-1101-5750.PMC7101247.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37787987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sex Differences in Cardiac AMP-Activated Protein Kinase Following Exhaustive Exercise. 力竭运动后心脏amp活化蛋白激酶的性别差异。

Sports medicine international open Pub Date : 2020-03-20 eCollection Date: 2020-01-01 DOI: 10.1055/a-1115-6373

Kevin D Brown, Edward D Waggy, Sreejayan Nair, Timothy J Robinson, Emily E Schmitt, Danielle R Bruns, D Paul Thomas

{"title":"Sex Differences in Cardiac AMP-Activated Protein Kinase Following Exhaustive Exercise.","authors":"Kevin D Brown, Edward D Waggy, Sreejayan Nair, Timothy J Robinson, Emily E Schmitt, Danielle R Bruns, D Paul Thomas","doi":"10.1055/a-1115-6373","DOIUrl":"https://doi.org/10.1055/a-1115-6373","url":null,"abstract":"Ischemic heart disease presents with significant differences between sexes. Endurance exercise protects the heart against ischemic disease and also distinctly impacts male and female patients through unidentified mechanisms, though some evidence implicates 5'-AMP-activated protein kinase (AMPK). The purpose of this investigation was to assess the impact of training and sex on cardiac AMPK activation following exhaustive exercise. AMPK activation was measured in trained and sedentary mice of both sexes. Trained mice ran on a treadmill at progressively increasing speeds and duration for 12 weeks. Trained and sedentary mice of both sexes were euthanized immediately following exhaustive exercise and compared to sedentary controls. Endurance training elicited adaptations indicative of aerobic adaptation including higher max running velocities and cardiac hypertrophy with no differences between males and females. AMPK activity was higher in male compared to females, and trained exhibited higher AMPK activity compared to sedentary mice. In response to training, male mice activated AMPK more robustly than female mice. Chronic exercise training increases the ability to activate cardiac AMPK in response to exhaustive exercise in a sex-specific manner. Understanding the interaction between exercise and sex is vital for use of exercise as medicine for heart disease in both men and women.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"4 1","pages":"E13-E18"},"PeriodicalIF":0.0,"publicationDate":"2020-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1115-6373","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37788057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Cross-Cultural Adaptation and Validation of the Arabic Version of the Intermittent and Constant Osteoarthritis Pain Questionnaire. 阿拉伯语版间歇性和持续性骨关节炎疼痛问卷的跨文化适应和验证。

Sports medicine international open Pub Date : 2020-02-17 eCollection Date: 2020-01-01 DOI: 10.1055/a-1031-0947

Musab Alageel, Abdullah Al Turki, Ali Alhandi, Rawa Alohali, Rakan Alsalem, Sami Aleissa

{"title":"Cross-Cultural Adaptation and Validation of the Arabic Version of the Intermittent and Constant Osteoarthritis Pain Questionnaire.","authors":"Musab Alageel, Abdullah Al Turki, Ali Alhandi, Rawa Alohali, Rakan Alsalem, Sami Aleissa","doi":"10.1055/a-1031-0947","DOIUrl":"https://doi.org/10.1055/a-1031-0947","url":null,"abstract":"This study aimed to translate and adapt the Intermittent and Constant Osteoarthritis Pain questionnaire into the Arabic language and evaluate the validity and reliability of this scale for participants with knee or hip osteoarthritis. This questionnaire was translated based on the Manufacturers Alliance for Productivity and Innovation protocol. The test-retest reliability was calculated using the Intraclass Correlation Coeﬃcient. Then, Cronbach's alpha was used to assess the internal consistency of Intermittent and Constant Osteoarthritis Pain questionnaire. After that, the criterion validity was evaluated against the Knee injury and Osteoarthritis Outcome Score. A total of 90 participants were included in this study, of which 29 participants were re-evaluated for reliability testing. The Intraclass Correlation Coeﬃcient of the Knee Intermittent and Constant Osteoarthritis Pain questionnaire were 0.841, 0.923 and 0.911 for the total, constant, and intermittent knee pain, respectively. Cronbach's alpha was 0.88, 0.93 and 0.94 for the total score, the intermittent knee pain and the constant knee pain, respectively. Eventually, criterion validity was r=0.24(P<0.05). Intermittent and Constant Osteoarthritis Pain in Arabic is a valid and reliable instrument to be used in Arabic-speaking patients with knee/hip osteoarthritis.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"4 1","pages":"E8-E12"},"PeriodicalIF":0.0,"publicationDate":"2020-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1031-0947","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37654475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Establishing Reference Cardiorespiratory Fitness Parameters in Alzheimer's Disease. 建立阿尔茨海默病参考心肺适能参数。

Sports medicine international open Pub Date : 2020-01-30 eCollection Date: 2020-01-01 DOI: 10.1055/a-1089-4957

Dereck Salisbury, Fang Yu

{"title":"Establishing Reference Cardiorespiratory Fitness Parameters in Alzheimer's Disease.","authors":"Dereck Salisbury, Fang Yu","doi":"10.1055/a-1089-4957","DOIUrl":"https://doi.org/10.1055/a-1089-4957","url":null,"abstract":"Evidence is growing for aerobic exercise training as a viable means to attenuate cognitive losses associated with Alzheimer's disease. The mechanism of action for aerobic exercise's cognitive benefits is likely enhanced cardiorespiratory fitness and its response to incremental aerobic exercise have been incompletely evaluated in Alzheimer's disease. The aim of this analysis was to establish cardiorespiratory fitness reference values in older adults with mild to moderate Alzheimer's disease using a cardiopulmonary graded exercise testing. Ninety-seven community-dwelling older adults with mild to moderate Alzheimer's disease underwent a symptom limited cardiopulmonary graded exercise test on a cycle ergometer. Differences between sexes and between Alzheimer's disease participants with and without diagnosis of cardiovascular diseases were assessed by independent T-tests. Peak oxygen consumption was 10-20% lower than those achieved by similar clinical populations on treadmill tests. As expected, males produced significantly higher peak oxygen consumption compared to females (p =0 .02). However, the presence of concurrent cardiovascular disease did not result in statistically significant lower peak oxygen consumption compared to those without cardiovascular disease. These data provide a frame of reference for metabolic, cardiovascular, and ventilatory function during cardiopulmonary graded exercise testing performed on cycle ergometer in older adults with mild to moderate Alzheimer's disease.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"4 1","pages":"E1-E7"},"PeriodicalIF":0.0,"publicationDate":"2020-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1089-4957","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37602197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Prediction of Ergogenic Mouthguard Effects in Volleyball: A Pilot Trial 排球运动中兴奋性漱口效果的初步预测

Sports medicine international open Pub Date : 2019-11-01 DOI: 10.1055/a-1036-5888

A. Schulze, M. Busse

{"title":"Prediction of Ergogenic Mouthguard Effects in Volleyball: A Pilot Trial","authors":"A. Schulze, M. Busse","doi":"10.1055/a-1036-5888","DOIUrl":"https://doi.org/10.1055/a-1036-5888","url":null,"abstract":"Abstract Dental occlusion may affect static and dynamic balance. The effects of a mouthguard on pinpoint accuracy in volleyball were investigated in 28 players who completed a volleyball specific test. Also, masticatory electromyographic tests were performed. The mean pinpoint accuracy was significantly higher with a mouthguard (68.6±9.3 vs. 64.0±7.0 points from 100; p< 0.006). However, differential mouthguard effects were seen, and three subgroups were classified: Group 1 (markedly improved pinpoint accuracy), Group 2 (improved pinpoint accuracy), and Group 3 (reduced pinpoint accuracy). Group 1 had a high masseter resting tone, the masseter activity was low in MVC (maximum voluntary clench) and increased in BOC (maximum bite on cotton rolls; p< 0.04). This indicates a masseter weakness, which would be compensated by a mouthguard. In Group 2, the masseter activity in MVC was high-normal with an imbalance which was improved in BOC (p< 0.01), indicating a possible mouthguard benefit. In Group 3, MVC and BOC were in a high-normal range and showed no relevant deficits. In these subjects the mouthguard had adverse effects. Overall, subjects with masticatory deficits had a benefit from the mouthguard in pinpoint accuracy. Positive or negative mouthguard responders may be detectible from electromyographic tests.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"3 1","pages":"E96 - E101"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1036-5888","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45151225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Changes in Flexibility and Force are not Different after Static Versus Dynamic Stretching 静态拉伸和动态拉伸后柔韧性和力的变化没有什么不同

Sports medicine international open Pub Date : 2019-10-23 DOI: 10.1055/a-1001-1993

Shingo Matsuo, M. Iwata, M. Miyazaki, Taizan Fukaya, Eiji Yamanaka, K. Nagata, Wakako Tsuchida, Y. Asai, Shigeyuki Suzuki

{"title":"Changes in Flexibility and Force are not Different after Static Versus Dynamic Stretching","authors":"Shingo Matsuo, M. Iwata, M. Miyazaki, Taizan Fukaya, Eiji Yamanaka, K. Nagata, Wakako Tsuchida, Y. Asai, Shigeyuki Suzuki","doi":"10.1055/a-1001-1993","DOIUrl":"https://doi.org/10.1055/a-1001-1993","url":null,"abstract":"Abstract In this study, we examined the effects of static and dynamic stretching on range of motion (ROM), passive torque (PT) at pain onset, passive stiffness, and isometric muscle force. We conducted a randomized crossover trial in which 16 healthy young men performed a total of 300 s of active static or dynamic stretching of the right knee flexors on two separate days in random order. To assess the effects of stretching, we measured the ROM, PT at pain onset, passive stiffness during passive knee extension, and maximum voluntary isometric knee flexion force using an isokinetic dynamometer immediately before and after stretching. Both static and dynamic stretching significantly increased the ROM and PT at pain onset (p<0.01) and significantly decreased the passive stiffness and isometric knee flexion force immediately after stretching (p<0.01). However, the magnitude of change did not differ between the two stretching methods for any measurements. Our results suggest that 300 s of either static or dynamic stretching can increase flexibility and decrease isometric muscle force; however, the effects of stretching do not appear to differ between the two stretching methods.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"3 1","pages":"E89 - E95"},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1001-1993","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49032517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Match Running Performance on Three Different Competitive Standards in Norwegian Soccer 挪威足球三种竞技标准下的比赛跑动表现

Sports medicine international open Pub Date : 2019-10-16 DOI: 10.1055/a-0943-3682

A. Sæterbakken, Vebjorn Haug, D. Fransson, Halvard Grendstad, Hilde Gundersen, V. F. Moe, Einar Ylvisåker, M. Shaw, A. Riiser, V. Andersen

{"title":"Match Running Performance on Three Different Competitive Standards in Norwegian Soccer","authors":"A. Sæterbakken, Vebjorn Haug, D. Fransson, Halvard Grendstad, Hilde Gundersen, V. F. Moe, Einar Ylvisåker, M. Shaw, A. Riiser, V. Andersen","doi":"10.1055/a-0943-3682","DOIUrl":"https://doi.org/10.1055/a-0943-3682","url":null,"abstract":"Abstract The aim of the study was to compare running performance of three competitive standards and to examine the effects of being promoted to a higher league in Norwegian football. One clubʼs first and second team were included. The first team consisted of professional soccer players playing at Level 2 (2015 season) and Level 1 (2016 season). The second team consisted of amateurs playing at Level 4. A fully automatic tracking system was used to examine running performance, divided into different running-speed categories and playing position. Forty-one matches were included containing 278 observations. Level 1 performed 61 and 51% sprinting compared to Level 2 and Level 4 but similar high-speed running. Similar high-speed running distances were observed only for the different playing positions at Level 1 compared to Level 2 and 4. The sprinting distance was greater for the central defender and attacker, and the number of accelerations was greater for central midfielders and wide midfielders’ playing at Level 1 compared to lower competitive standards. In conclusion, better competitive standards resulted in greater high-intensity actions than lower leagues in Norwegian soccer. Furthermore, only central defenders and attackers increased their high-intensity locomotions when the team was promoted.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"3 1","pages":"E82 - E88"},"PeriodicalIF":0.0,"publicationDate":"2019-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0943-3682","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49230545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

Comparison of Kinematics and Muscle Activation between Push-up and Bench Press 俯卧撑和卧推运动和肌肉激活的比较

Sports medicine international open Pub Date : 2019-09-05 DOI: 10.1055/a-1001-2526

R. Tillaar

{"title":"Comparison of Kinematics and Muscle Activation between Push-up and Bench Press","authors":"R. Tillaar","doi":"10.1055/a-1001-2526","DOIUrl":"https://doi.org/10.1055/a-1001-2526","url":null,"abstract":"Abstract The purpose of this study was to compare the similarity in kinematics and upper-body muscle activation between push-up and bench press exercises over a range of loads. Twenty resistance-trained subjects (age 22.5±5.24 yrs, body mass 83.7±10.7 kg, height 1.80±0.06 m) executed bench presses and push-ups with 4 different loads. Bench press was executed at 50–80% of their assumed 1 repetition max in steps of 10 kg, while push-ups were executed without a weight vest and with a 10–20–30 kg weight vest. A linear encoder measured kinematics (displacement, time, average and peak velocity) during the exercises at each load, together with mean and maximal muscle activation of 8 upper body muscles and their timing for each exercise and each load. The main findings of this study demonstrate no differences in kinematics and muscle activation between the two exercises and that the different loads had the same effect upon both push-up and bench press in experienced resistance-trained men. For coaches and athletes, push-ups and bench presses for strength training can be used interchangeably. By using a weight vest, push-ups can mimic different loads that are similar to different intensities in the bench press that can be used to train strength demands.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"3 1","pages":"E74 - E81"},"PeriodicalIF":0.0,"publicationDate":"2019-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1001-2526","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46176685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Letter to the Editor: Is Golf the New Football or Have We Made It So? 致编辑的信:高尔夫是新的足球还是我们创造的?

Sports medicine international open Pub Date : 2019-08-21 DOI: 10.1055/a-0985-0449

Harsh Deora, Nishant S. Yagnick, M. Tripathi, S. Mohindra

引用次数: 2

Determination of the Maximal Lactate Steady State by HRV in Overweight and Obese Subjects HRV测定超重和肥胖受试者的最大乳酸稳态

Sports medicine international open Pub Date : 2019-07-15 DOI: 10.1055/a-0883-5473

T. Schmidt, Sarah Wulff, K. Braumann, R. Reer

{"title":"Determination of the Maximal Lactate Steady State by HRV in Overweight and Obese Subjects","authors":"T. Schmidt, Sarah Wulff, K. Braumann, R. Reer","doi":"10.1055/a-0883-5473","DOIUrl":"https://doi.org/10.1055/a-0883-5473","url":null,"abstract":"Abstract The study assessed if the maximal lactate steady state (MLSS) may be determined by HRV in overweight and obese individuals. Fourteen obese (OB) and 14 overweight (OW) participants performed an incremental exercise test and several constant-load tests on a bicycle ergometer to determine the MLSS. HRV was analysed by using time domain and non-linear parameters of the Poincaré plot. Various HRV thresholds (HRVt) were detected and compared with the MLSS. Overall, Bland-Altman plots demonstrated moderate to strong agreements between the power at the MLSS and the power at HRVt, with all HRVt overestimating the MLSS (range: − 14.6 to−19.8 W). All HRVt were detected at higher intensities (69.2–78.8%Pmax) compared to the MLSS (62.6–66.8%Pmax). The primarily vagally modulated parameter HRVtSD1 revealed higher correlations (r=0.66–0.76) and lower differences (16.8–19.9%) compared to the parameter HRVtSD2 (r=0.56–r=0.66; 22.4–22.9%). The data suggest a delayed vagal withdrawal during incremental exercise in obese and overweight individuals. For this population, the use of HRV to determine the MLSS seems questionable.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"3 1","pages":"E58 - E64"},"PeriodicalIF":0.0,"publicationDate":"2019-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0883-5473","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47626329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2